Your experience is a true account for many for many adult onset swimmers. A minimum of 2-3 months of conscious competence practice. For some, the breathing is such a challenge they stop the process. Your perseverance is something you should feel very proud of!
Originally Posted by gparlagh
I am not really sure about the time span, as I realized at the very first occasion that the breathing will be the key factor. I started a targeted work on the breathing about 2 months ago. I needed 1 month to realize that my breathing should be as close to the natural breathing habits as possible. With the bobs I spent another 2 weeks, and they really helped me to figure out my breathing rhythm. I have to add, that I swim only 2 times a week.